3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface OriginalContract { } interface MoreSpecificContract extends OriginalContract { } class Foo { public function baz(OriginalContract $item) {} } class Bar extends Foo { public function baz(MoreSpecificContract $item) {} }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Declaration of Bar::baz(MoreSpecificContract $item) must be compatible with Foo::baz(OriginalContract $item) in /in/W6YZq on line 18
Process exited with code 255.
Output for 7.4.0 - 7.4.33
Warning: Declaration of Bar::baz(MoreSpecificContract $item) should be compatible with Foo::baz(OriginalContract $item) in /in/W6YZq on line 18
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33
Warning: Declaration of Bar::baz(MoreSpecificContract $item) should be compatible with Foo::baz(OriginalContract $item) in /in/W6YZq on line 19
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
Strict Standards: Declaration of Bar::baz() should be compatible with Foo::baz(OriginalContract $item) in /in/W6YZq on line 19
preferences:
199.87 ms | 402 KiB | 256 Q